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Aging method for plasma display panel

a plasma display panel and aging method technology, applied in the manufacture of electrode systems, electric discharge tubes/lamps, tube/lamp factory adjustment, etc., can solve the problems of reducing the yield of products, changing the aging characteristic, and reducing the storage of charges, so as to prevent the variation of the aging characteristic and reduce the storage

Inactive Publication Date: 2005-11-17
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023] An object of the present invention is to provide an aging method for a plasma display panel, for minimizing dielectric breakdown of a panel and preventing variation of an aging characteristic.
[0025] The inventive aging method can generate an initial discharge with a lower voltage using an opposite discharge, which is caused by a voltage difference between the electrode for applying the discharge voltage and the address electrode, and allow the address electrode to have a higher voltage than the scan electrode and the sustain electrode, thereby reducing storage of charges and preventing the variation of the aging characteristic.

Problems solved by technology

A method of generating an initial discharge using the surface discharge between the scan electrode and the sustain electrode requires much high voltage.
This method has a drawback in that an inter-electrode dielectric breakdown is generated in the panel having less process margin, thereby decreasing a yield of product because the dielectric breakdown panel is a bad panel, not any longer good panel.
The conventional aging method has a drawback in that because the address electrode is charged with a lower voltage than the scan electrode and the sustain electrode, an electric potential of the address electrode becomes different due to positive ions stored on the address electrode, thereby changing an aging characteristic.

Method used

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Embodiment Construction

[0032] Preferred embodiments of the present invention will be described in a more detailed manner with reference to the drawings.

[0033]FIG. 4 is a waveform diagram illustrating a sustain discharge pulse applied in an aging method according to an embodiment of present invention.

[0034] As shown in FIG. 4, the alternating sustain discharge pulse is applied to a scan electrode and a sustain electrode. The sustain discharge pulse has a reference voltage of 0V, and has a discharge voltage of −Vs lower than the reference voltage. The same voltage as the reference voltage (0V) is continuously applied to the address electrode.

[0035] As the voltages are applied, positive ions move to a magnesium oxide (MgO) layer of a front panel due to the scan electrode and the sustain electrode having a lower voltage than the address electrode. Since the MgO layer of the front panel has a larger secondary electron emission coefficient than a phosphor layer of a rear panel, the front panel emits more sec...

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Abstract

The present invention relates to an aging method for a plasma display panel. In the aging method, a sustain discharge pulse having a lower discharge voltage than a reference voltage is alternatingly applied to a scan electrode and a sustain electrode of a front panel, and the same voltage as or a higher voltage than the reference voltage is applied to an address electrode of a rear panel, thereby generating discharge.

Description

[0001] This Nonprovisional application claims priority under 35 U.S.C. § 119(a) on Patent Application No. 10-2004-0034470 filed in Korea on May 14, 2004, the entire contents of which are hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to an aging method for a plasma display panel, and more particularly, to an aging method for a plasma display panel, for minimizing dielectric breakdown of a panel, and preventing variation of an aging characteristic. [0004] 2. Description of the Background Art [0005] In general, plasma display panel (Hereinafter, referred to as “PDP”) includes a front substrate and a rear substrate formed of soda-lime glass, and a barrier rib defining one unit cell between the front substrate and the rear substrate. Main discharge gas such as neon (Ne), helium (He) or a combination of neon and helium (Ne+He) and inert gas containing a small amount of xenon (Xe) are filled into each cel...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01J9/44H01J9/00H01J11/12H01J11/14H01J11/24H01J11/26H01J11/36
CPCH01J2217/49H01J9/445B42F13/14B42P2241/20
Inventor CHOI, SUNG CHUN
Owner LG ELECTRONICS INC
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